CN101844680B - Cross switching device - Google Patents

Cross switching device Download PDF

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Publication number
CN101844680B
CN101844680B CN2010101572940A CN201010157294A CN101844680B CN 101844680 B CN101844680 B CN 101844680B CN 2010101572940 A CN2010101572940 A CN 2010101572940A CN 201010157294 A CN201010157294 A CN 201010157294A CN 101844680 B CN101844680 B CN 101844680B
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China
Prior art keywords
swing
walking
around trajectory
guiding
article transport
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CN2010101572940A
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CN101844680A (en
Inventor
小黑敬介
藤田心裕
竹本祐也
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Daifuku Co Ltd
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Daifuku Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
    • H01L21/67715—Changing the direction of the conveying path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
    • B65G37/02—Flow-sheets for conveyor combinations in warehouses, magazines or workshops
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
    • H01L21/6773—Conveying cassettes, containers or carriers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
    • H01L21/67733—Overhead conveying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
    • H01L21/67736—Loading to or unloading from a conveyor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67763—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
    • H01L21/67769—Storage means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0297—Wafer cassette

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

The invention provides a path switching device which is simply constructed for an article transport vehicle smoothly passing through the path. The article transport vehicle (3) is provided with a pushing part (47) which is arranged for pushing a guided rotatable rail (42) when the article transport vehicle (3) enters into the crossed paths and a connecting mechanism (48) which is arranged for connecting the rotation of the guided rotatable rail (42) and the rotation of a walking rotatable rail (44), wherein the pushing part (47) and the connecting mechanism (48) can automatically switch a first switching state that the guided rotatable rail (42) is at a first guiding position and the walking rotatable rail (44) is at a first walking position and a second switching state that the guided rotatable rail (42) is at a second guiding position and the walking rotatable rail (44) is at a second walking position.

Description

Path switching device
Technical field
The present invention relates to path switching device, the cross part that this path switching device possesses in the 1st path and the 2nd paths intersect can switch to the switching mechanism that makes article transport car the 1st switching state that passes through in described the 1st path and the 2nd switching state that described article transport car is passed through in described the 2nd path.
Background technology
In above-mentioned path switching device, by when the article transport car passes through cross part in the 1st path, switching mechanism switches to the 1st switching state, and when the article transport car passes through cross part in the 2nd path, switching mechanism switches to the 2nd switching state, makes the article transport car to pass through cross part in the 1st path and the 2nd path respectively.
As existing path switching device, the cross part that has is made of the branch's formula cross part that is branched off into the 1st path and the 2nd path from main path.In this existing equipment, in main path, be connected in the intake section, the 1st path of cross part the 2nd exit portion that connects from cross part the 1st exit portion that connects from cross part and the 2nd path respectively, be provided with guide rail and walking track, the guiding of this guide rail possesses on the top of article transport car is directed roller, the road wheel that this walking track guide support possesses in the bottom of article transport car.Be provided with guiding at cross part and use handoff path with handoff path with walking, the 2nd position that this guiding switches to the 1st position of the guiding usefulness that is connected to the guide rail that is located at intake section and the 1st exit portion freely and is connected to the guiding usefulness of the guide rail that is located at intake section and the 2nd exit portion with handoff path, the 2nd position that this walking switches to the 1st position of the walking usefulness that is connected to the walking track that is located at intake section and the 1st exit portion freely and is connected to the walking usefulness of the walking track that is located at intake section and the 2nd exit portion with handoff path.And, switching mechanism possesses switching drive division (for example electro-motor etc.), by switching the driving of drive division (for example electro-motor etc.), walking is switched to the 1st position of walking usefulness and will guide the 1st position that switches to guiding usefulness with handoff path with handoff path, as the 1st switching state, walking is switched to the 2nd position of walking usefulness and will guide the 2nd position that switches to guiding usefulness with handoff path with handoff path, as the 2nd switching state (for example, with reference to patent documentation 1).
In addition, in other existing path switching device, the cross part that has is made of the quadrature formula cross part that the 1st path and the 2nd path intersect orthogonally.In this other existing path switching device, be connected to the 2nd intake section of cross part and the 2nd exit portion that is connected from cross part the 1st intake section that in the 1st path, is connected to cross part respectively and the 1st exit portion that is connected from cross part and the 2nd path, be provided with the walking track of the road wheel that guide support possesses at the article transport car.At cross part, being provided with walking and use swing-around trajectory, this walking with swing-around trajectory around about axle center and rotating to the 1st position of the walking usefulness that is connected to the walking track that is located at the 1st intake section and the 1st exit portion freely and the 2nd position that is connected to the walking usefulness of the walking track that is located at the 2nd intake section and the 2nd exit portion.And, switching mechanism possesses the 1st rotary manipulation mechanism and the 2nd rotary manipulation mechanism and constitutes, the 1st rotary manipulation mechanism is by being accompanied by article transport car entering to cross part, bear bulldozing operation by the article transport car, freely rotate 1st position to walk usefulness with swing-around trajectory from the 2nd position operation of walking usefulness thereby will walk, the 2nd rotary manipulation mechanism is by being accompanied by article transport car entering to cross part, bear bulldozing operation by the article transport car, freely rotate 2nd position to walk usefulness with swing-around trajectory from the 1st position operation of walking usefulness thereby will walk.The 1st rotary manipulation mechanism and the 2nd rotary manipulation mechanism purchase in cross part, by the 1st rotary manipulation mechanism will walk with swing-around trajectory switch to the walking usefulness the 1st position, as the 1st switching state, by the 2nd rotary manipulation mechanism will walk with swing-around trajectory switch to the walking usefulness the 2nd position, as the 2nd switching state.The 1st rotary manipulation mechanism and the 2nd rotary manipulation mechanism are accompanied by the bulldozing operation of the article transport car that is produced to entering of cross part by the article transport car respectively, begin to walk and use the rotation of swing-around trajectory, compress bias spring with the rotation of swing-around trajectory by walking simultaneously.And if the bulldozing operation of article transport car is inoperative, then the bias force by compressed bias spring continues the rotation of walking usefulness swing-around trajectory, the switching of the walking position of the usefulness of walking swing-around trajectory.(for example, with reference to patent documentation 2).
Patent documentation 1: Japanese kokai publication hei 9-323644 communique
Patent documentation 2: Japan opens flat 3-32602 communique in fact
Summary of the invention
In the equipment that above-mentioned patent documentation 1 is put down in writing, owing to not only be provided with the walking handoff path at cross part, also be provided with the guiding handoff path, thereby, when the article transport car passes through cross part, not only can be by the road wheel of walking with handoff path guide support article transport car, can also guide the roller that is directed that possesses on the top of article transport car, so, can stably carry out the walking of article transport car, the article transport car can waltz through cross part.
Yet, in the equipment that above-mentioned patent documentation 1 is put down in writing, have to be provided for walking is switched to handoff path the switching drive division of the 2nd position of the 1st position of walking usefulness and the usefulness of walking at cross part.Thus, have to carry out wiring operation for supply capability switching drive division, perhaps, that has to guarantee to switch drive division arranges space etc., thus cause constituting complicated.In addition, in having the equipment of a plurality of cross parts, have at a plurality of cross parts the switching drive division is set respectively, thereby cause cost to improve.
In the equipment that above-mentioned patent documentation 2 is put down in writing, walking can be switched to the 1st position of walking usefulness and the 2nd position of walking usefulness with swing-around trajectory owing to be accompanied by the article transport car to entering of cross part, thereby can not be provided for will walking at cross part switches to the 1st position of walking usefulness and the switching drive division of the 2nd position of walking usefulness with swing-around trajectory.Thus, compare with the equipment that above-mentioned patent documentation 1 is put down in writing, can realize the simplification that constitutes in having the equipment of a plurality of cross parts, also can realizing the attenuating of cost etc.
Yet, in the equipment that above-mentioned patent documentation 2 is put down in writing, only be provided with the walking swing-around trajectory at cross part, when the article transport car passes through cross part, only by the road wheel of walking with handoff path guide support article transport car, be difficult to stably carry out the walking of article transport car, the article transport car possibly can't waltz through cross part.In addition, for be accompanied by the article transport car will walk to entering of cross part with swing-around trajectory switch to the walking usefulness the 1st position and the walking usefulness the 2nd position, have to possess the 1st rotary manipulation mechanism and the 2nd rotary manipulation mechanism at cross part, the space correspondingly is set becomes big, constitute the complexity that also becomes.
By the way, can consider in the equipment that above-mentioned patent documentation 2 is put down in writing, cross part except the walking with swing-around trajectory, also possess the guiding that the is directed roller swing-around trajectory that guiding possesses on the top of article transport car etc., with around axle center up and down rotation freely to the 1st position of the guiding usefulness that is connected to the guide rail that is located at the 1st intake section and the 1st exit portion and the mode of the 2nd position that is connected to the guiding usefulness of the guide rail that is located at the 2nd intake section and the 2nd exit portion this guiding swing-around trajectory is set.In this case, to guide the 1st position and the 2nd position that guides usefulness that switches to guiding usefulness with swing-around trajectory to entering of cross part in order to be accompanied by the article transport car, except the 1st rotary manipulation mechanism and the 2nd rotary manipulation mechanism, have to also possess two operating mechanisms at cross part, thus cause constituting complicated.
The present invention is conceived to this and proposes, and its purpose is, provides a kind of complicated and article transport car that does not cause constituting can waltz through the path switching device of cross part.
In order to reach this purpose, path switching device according to the present invention possesses:
The 1st path;
The 2nd path intersects at cross part with described the 1st path;
At least one article transport car constitutes in the mode along described the 1st path and the 2nd path movement, and described article transport car has respectively:
What possess on the top of described article transport car is directed roller, can be around along institute
State the axle center rotation of the above-below direction of article transport car;
The road wheel (a plurality of) that possesses in the bottom of described article transport car, can around along
The axle center rotation of the Width of described article transport car;
Guide rail guides the described roller that is directed of described article transport car;
The walking track, the road wheel of the described article transport car of guide support, at this, described guide rail and described walking track are separately positioned on the 2nd intake section that is connected to described cross part and the 2nd exit portion that is connected from described cross part the 1st intake section that is connected to described cross part and the 1st exit portion that is connected from described cross part and described the 2nd path in described the 1st path;
The guiding swing-around trajectory, be configured in described cross part, can rotate to the 1st position of the guiding usefulness that is connected to the described guide rail that is located at described the 1st intake section and described the 1st exit portion and the 2nd position that is connected to the guiding usefulness of the described guide rail that is located at described the 2nd intake section and described the 2nd exit portion around axle center up and down;
The walking swing-around trajectory, be configured in described cross part, can rotate to the 1st position of the walking usefulness that is connected to the described walking track that is located at described the 1st intake section and described the 1st exit portion and the 2nd position that is connected to the walking usefulness of the described walking track that is located at described the 2nd intake section and described the 2nd exit portion around axle center up and down; And
Switching mechanism at described cross part, can switch to and make the 1st switching state that the article transport car passes through and the 2nd switching state that described article transport car is passed through in described the 2nd path in described the 1st path,
Described path switching device also possesses:
Bulldozing operation portion, be located on each described article transport car, and constitute, be accompanied by described article transport car to the entering of described cross part, with described guiding with swing-around trajectory and described walking with one in the swing-around trajectory from described the 1st position bulldozing operation to described the 2nd position and from described the 2nd position bulldozing operation to described the 1st position;
Link mechanism, if the bulldozing operation of described bulldozing operation portion make described guiding with swing-around trajectory and described walking with one in the swing-around trajectory from the rotation of described the 1st position to described the 2nd position, then make described guiding with swing-around trajectory and described walking with in the swing-around trajectory another from the rotation of described the 1st position to described the 2nd position, and, if the bulldozing operation of described bulldozing operation portion make described guiding with swing-around trajectory and described walking with one in the swing-around trajectory from the rotation of described the 2nd position to described the 1st position, then make described guiding with swing-around trajectory and described walking with in the swing-around trajectory another from the rotation of described the 2nd position to described the 1st position, described guiding is connected with the rotation of swing-around trajectory and the described walking rotation with swing-around trajectory
At this, described switching mechanism with by described bulldozing operation portion and described link mechanism and the mode that can switch to described the 1st switching state and described the 2nd switching state constitute, described the 1st switching state makes described guiding be positioned at the 1st position of described guiding usefulness with swing-around trajectory and makes described walking be positioned at the 1st position of described walking usefulness with swing-around trajectory, and described the 2nd switching state makes described guiding be positioned at the 2nd position of described guiding usefulness with swing-around trajectory and makes described walking be positioned at the 2nd position of described walking usefulness with swing-around trajectory.
According to this formation, when the article transport car enters cross part in the 1st path, by the walking track guide support road wheel that is located at the 1st intake section, and, be directed under the state of roller by the guide rail guiding that is located at the 1st intake section, the article transport car enters cross part.And, enter cross part by the article transport car, for example, make bulldozing operation portion carry out bulldozing operation to guiding with swing-around trajectory and from the 2nd position rotation of guiding usefulness to the 1st position that guides usefulness, and link mechanism is accompanied by this guiding makes walking with 1st position of swing-around trajectory from the 2nd position rotation of walking usefulness to the usefulness of walking with the rotation of swing-around trajectory.Thus, enter cross part by the article transport car, can switch to and make guiding be positioned at the 1st position of guiding usefulness and make walking be positioned at the 1st switching state of the 1st position of walking usefulness with swing-around trajectory with swing-around trajectory.As a result, when the article transport car passes through cross part, used swing-around trajectory guide support road wheel by walking, and, be directed under the state of roller article transport garage being walked with the swing-around trajectory guiding by guiding.In addition, though at the article transport car by after the cross part, by the walking track guide support road wheel that is located at the 1st exit portion, and, be directed under the state of roller by the guide rail guiding that is located at the 1st exit portion, also can get article transport garage and walk.
When the article transport car enters cross part in the 2nd path, identical in the situation that the 1st path enters cross part with the article transport car, by bulldozing operation portion to guiding with the rotation of swing-around trajectory and link mechanism to guiding with the rotation of swing-around trajectory and the walking contact with the rotation of swing-around trajectory, and enter cross part by the article transport car, make guiding be positioned at the 2nd position of guiding usefulness with swing-around trajectory and make walking be positioned at the 2nd switching state of the 2nd position of walking usefulness with swing-around trajectory thereby can switch to.
So, in cross part, except guiding is used the swing-around trajectory with swing-around trajectory and walking, can only possess the link mechanism that the guiding of making uses the rotation of swing-around trajectory to contact with the rotation of swing-around trajectory and walking, can not possess the drive division of using the position of swing-around trajectory for switching and booting with swing-around trajectory and walking.
So, can realize not causing the complicated and article transport car that constitutes can waltz through the path switching device of cross part in arbitrary path in the 1st path and the 2nd path.
In the embodiment of path switching device of the present invention, described bulldozing operation portion constitutes, be accompanied by described article transport car entering to described cross part, can be with described guiding with 2nd position and 1st position from 2nd position bulldozing operation of described guiding usefulness to described guiding usefulness of swing-around trajectory from the 1st position bulldozing operation of described guiding usefulness to described guiding usefulness
If the bulldozing operation of described bulldozing operation portion makes described guiding with 2nd position of swing-around trajectory from the 1st position rotation of described guiding usefulness to described guiding usefulness, then described link mechanism makes described walking with 2nd position of swing-around trajectory from the rotation of the 1st position of described walking usefulness to described walking usefulness, and, if the bulldozing operation of described bulldozing operation portion makes described guiding with 1st position of swing-around trajectory from the 2nd position rotation of described guiding usefulness to described guiding usefulness, then described link mechanism makes described walking with 1st position of swing-around trajectory from the rotation of the 2nd position of described walking usefulness to described walking usefulness, and described guiding is connected with the rotation of swing-around trajectory and the described walking rotation with swing-around trajectory.
Walking because the guide support road wheel, thereby is necessary to strengthen intensity with swing-around trajectory, but guiding with swing-around trajectory since only guiding be directed roller, thereby do not seek and walking with the firm equally intensity of swing-around trajectory.Thus, usually, guiding can be lighter with swing-around trajectory than walking with swing-around trajectory.So, constitute according to eigen, because bulldozing operation portion carries out bulldozing operation with swing-around trajectory and will guide the 1st position and the 2nd position that guides usefulness that switches to guiding usefulness with swing-around trajectory guiding, thereby, even the bulldozing operation power of this moment is slightly little, also guiding can be switched to the 1st position of guiding usefulness and the 2nd position of guiding usefulness reliably with swing-around trajectory.In addition, because guiding guides the roller that is directed that possesses on the top of article transport car with swing-around trajectory, thereby compares with swing-around trajectory with walking, its degree of freedom that position is set is also big, so can be arranged on the position of carrying out bulldozing operation easily by bulldozing operation portion.
In the embodiment of path switching device of the present invention, bottom at described article transport car, possesses the walking guide wheel that can rotate around axle center up and down, described walking constitutes with swing-around trajectory, by the described road wheel of face guide support along horizontal surface, and, guide described walking guide wheel by the face along above-below direction.
According to this formation, when the article transport car when the cross part, by the face guide support road wheel along horizontal surface of walking with swing-around trajectory, and, walked with the face guiding along above-below direction of swing-around trajectory by walking and to use guide wheel.At this moment, by along the face of above-below direction and the walking butt with guide wheel, can restricted articles conveyance car moving and make its walking on Width, can stablize and successfully carry out walking at cross part.And, when the article transport car passes through cross part, use guide wheel owing to use the face pushing along above-below direction of swing-around trajectory to walk with respect to walking, thereby can keep walking to use the position of swing-around trajectory by this thrust pressure.Thus, walking not only can be remained on state after the switching with the position of swing-around trajectory, also guiding can be remained on state after the switching with the position of swing-around trajectory, there is no need being provided for keeping walking with swing-around trajectory and the formation of guiding with the position of swing-around trajectory, the simplification that can seek to constitute.
In the embodiment of path switching device of the present invention, preferred described link mechanism mutually becomes reciprocal mode with the hand of rotation of swing-around trajectory and described walking with the hand of rotation of swing-around trajectory with described guiding makes described guiding connect with the rotation of swing-around trajectory and the described walking rotation with swing-around trajectory.
According to this formation, because guiding is reversing sense with the hand of rotation of swing-around trajectory with the hand of rotation of walking with swing-around trajectory, thereby guiding becomes at reversing sense with the rotational force of swing-around trajectory with the rotational force of swing-around trajectory and walking and works, and guiding is worked with swing-around trajectory and the mode of walking with the rotational force of swing-around trajectory to cancel out each other.So, be equidirectional comparing with guiding the hand of rotation with swing-around trajectory with the hand of rotation of walking with swing-around trajectory, keep guiding to use swing-around trajectory and the position of walking with swing-around trajectory easily.As a result, can stablize and successfully carry out walking at the article transport car of cross part.And, as mentioned above, because walking is worked to the face along above-below direction of walking with swing-around trajectory with the thrust pressure of guide wheel, thereby by this thrust pressure and bulldozing operation portion to the synergy of guiding with the pushing of swing-around trajectory, when switching and booting is used the position of swing-around trajectory with swing-around trajectory and walking, can carry out this position reliably and keep.
In the embodiment of path switching device of the present invention, described link mechanism possess the 1st swivel of can be around axle center up and down and rotating integratedly with swing-around trajectory with described guiding, can be around axle center up and down and rotation transfer part that the 2nd swivel that rotates integratedly with swing-around trajectory with described walking and rotation that will described the 1st swivel are passed to described the 2nd swivel and described the 2nd swivel is rotated.
According to this formation, if rotate the guiding swing-around trajectory by the bulldozing operation of bulldozing operation portion, then guiding is rotated integratedly with swing-around trajectory and the 1st swivel.Owing to be accompanied by the rotation of the 1st swivel, the rotation transfer part is passed to the rotation of the 1st swivel the 2nd swivel and makes the rotation of the 2nd swivel, thereby the 2nd swivel rotates with swing-around trajectory integratedly with walking.Thus, by the bulldozing operation of bulldozing operation portion, the rotation of guiding with swing-around trajectory can be passed to walking rightly with swing-around trajectory and walking is rotated with swing-around trajectory.So, be accompanied by guiding and switch with the position of swing-around trajectory, can walk rightly and switch with the position of swing-around trajectory, can carry out the switching of the 1st switching state and the 2nd switching state rightly.
In the embodiment of path switching device of the present invention, preferably, described guiding is arranged to swing-around trajectory, come and go around axle center up and down and to shake to the 1st position of described guiding usefulness and the 2nd position of described guiding usefulness, described walking track, the mode of each described road wheel of both sides that is configured in the Width of described article transport car with guide support severally is configured in the both sides of the Width of described article transport car, described walking is arranged to swing-around trajectory, one end is configured in the position that is connected with the terminal part of the terminal part of a pair of described walking track that is configured in described the 1st intake section and a pair of described walking track that is configured in described the 2nd intake section, and making up and down, the axle center is positioned at this end and round shaking to the 1st position of described walking usefulness and the 2nd position of described walking usefulness.
According to this formation, because guiding comes and goes freely with swing-around trajectory with swing-around trajectory and walking and shakes, can dwindle link mechanism and make the scope of the hand of rotation that guiding connects with the rotation of swing-around trajectory and the rotation with swing-around trajectory of walking, thereby can seek the simplification of the formation of link mechanism.In addition, because walking is configured in the position that is connected with the track of walking with an end of swing-around trajectory, as long as thereby the axle center is positioned at this end and walking is shaken with swing-around trajectory about making, just can switch to the 1st position of walking usefulness and the 2nd position of walking usefulness freely.Thus, also can seek to switch to the 1st position of walking usefulness and the simplification of the formation of the 2nd position of walking usefulness for walking with swing-around trajectory.
In the embodiment of path switching device of the present invention, preferred described guide rail and described guiding swing-around trajectory, with when described article transport car passes through described cross part, boot configuration is configured in the central portion of the Width of described article transport car in the described mode that is directed roller of the central portion of the Width of described article transport car, described guiding arranges in the mode that this central portion can be shaken as axle center up and down with swing-around trajectory, on described article transport car, possesses position change mechanism of bulldozing operation portion, position change mechanism of this bulldozing operation portion can be on the Width of described article transport car changes to the 1st pushing position and the 2nd pushing position with the location of described bulldozing operation portion, the 1st pushing position be on the Width of described article transport car than described guiding with the central portion of the swing-around trajectory position of end side more, and make described guiding shake the 1st position to described guiding usefulness from the 2nd position of described guiding usefulness with swing-around trajectory, the 2nd pushing position be on the Width of described article transport car than described guiding with the central portion of the swing-around trajectory position of end side more, and make described guiding shake the 2nd position to described guiding usefulness from the 1st position of described guiding usefulness with swing-around trajectory.
According to this formation, when the article transport car passes through cross part, can can when stably carrying out the guiding of article transport car, pass through cross part by guide rail and guiding with the be directed roller of swing-around trajectory boot configuration at the central portion of the Width of article transport car.And, since guiding with swing-around trajectory with the central portion of its length direction as about axle center and shaking freely, thereby, by more carrying out the simple operations of bulldozing operation in the position of end side by the contrast guiding of bulldozing operation portion with the central portion of the length direction of swing-around trajectory, can be easily and will guide reliably with swing-around trajectory and switch to the 1st position of guiding usefulness and guide the 2nd position of usefulness.And, when the article transport car passes through cross part in the 1st path, by bulldozing operation position change mechanism the position of bulldozing operation portion is switched to the 1st pushing position, can will be guided by the bulldozing operation of bulldozing operation portion with swing-around trajectory and shake to the 1st position of guiding usefulness, switch to the 1st switching state reliably.In addition, when the article transport car in the 2nd path when the cross part, also by bulldozing operation position change mechanism the position of bulldozing operation portion is switched to the 2nd pushing position, can switch to the 2nd switching state reliably.
In the embodiment of path switching device of the present invention, preferred described walking constitutes with swing-around trajectory, respectively at the road wheel of the side of the 2nd location guide supported configurations in the described road wheel of the both sides of the Width of described article transport car of the 1st position of described walking usefulness and described walking usefulness, described guide rail possesses as described guide surface relative with a side of Width described article transport car the face of roller and the face relative with opposite side of being directed of guiding with swing-around trajectory with described guiding, on described article transport car, possesses the guide surface switching mechanism, when described article transport car passes through described cross part, the change of this guide surface switching mechanism on the Width of described article transport car with respect to described guide rail and described guiding with the described position that is directed roller of swing-around trajectory, can switch to the face relative with a side of Width described article transport car in described guide rail and the described guiding usefulness swing-around trajectory or the face relative with opposite side by the described face that is directed roller of guiding.
According to this formation, because walking gets final product with the side that swing-around trajectory only is located at the Width of article transport car, thereby contact with the rotation of swing-around trajectory with guiding, can only be the rotation of single walking usefulness swing-around trajectory, can seek the simplification of the formation of link mechanism.
Yet, when the article transport car when the cross part because the road wheel of a side of the Width of guide support article transport car only, the article transport car might be on Width to walking with the non-existent lopsidedness of guide rail.So, constitute according to eigen, the guide surface switching mechanism is directed the position of roller by change, thereby the face that guiding is directed roller is switched to the face relative with a side of the Width of article transport car or the face relative with opposite side freely, thereby the face that guiding can be directed roller switches to be faced and the face of walking with the opposite side of a side of guide rail existence.Thus, by being directed roller and guiding with the butt of the guide surface of swing-around trajectory, can prevent the article transport car on Width to walking with the non-existent lopsidedness of guide rail, can by cross part the time, stably carry out the walking of article transport car.
In the embodiment of path switching device of the present invention, preferred described bulldozing operation portion with on the Width of described article transport car can with described be directed roller integratedly mobile mode possess,
Position change mechanism of described bulldozing operation portion is made of described guide surface switching mechanism.
According to this formation, because bulldozing operation portion and to be directed roller mobile freely integratedly, thereby, if the position that be directed roller of guide surface switching mechanism change on the Width of article transport car, the position that then also can change bulldozing operation portion.Thus, can constitute position change mechanism of bulldozing operation portion, the simplification that can seek to constitute by the guide surface switching mechanism.
Description of drawings
Fig. 1 is all planar views of article transport device;
Fig. 2 is the lateral plan of the part of article transport device;
Fig. 3 is the section drawing of the article transport car on the direction of direction of travel;
Fig. 4 is the planar view that shows branching portion;
Fig. 5 is the planar view that shows cross part;
Fig. 6 is the section drawing on the direction of direction of travel that shows cross part;
Fig. 7 is the figure of the state when showing the article transport car by cross part;
Fig. 8 is the figure of the state when showing the article transport car by cross part.
The specific embodiment
Based on accompanying drawing, the embodiment of article transport device is described.
As shown in Figure 1, this article transport device possesses a plurality of article handling parts 1 that semiconductor substrate is handled.In the top board side walking track 2 is set with the state via these article handling parts 1, forms walking path S, be provided with and follow away path S at a plurality of article transport cars 3 of the mobile top board conveyance formula freely of a direction.In this article transport device, as article 4, article transport car 3 constitutes in the mode of conveyance article 4 between a plurality of article handling parts 1 with the container of taking in semiconductor substrate.Walking track 2 is arranged on top plate portion (with reference to Fig. 2) with support (bracket) 5 with stationary state by the walking track.
As shown in Figure 2,3 liftings of article transport car possess the handle part 6 of controlling article 4 with suspension status freely.In the state that article transport car 3 stops, handle part 6 with by rolling or emit wire rod (wire) 7 lifting freely to arranging near the hoisting position of article transport car 3 and the mode of lowering position, at this lowering position and more be arranged on than article transport car 3 between the platform (station) 8 (being equivalent to the article transport place) that the article transfer of lower side uses and carry out the article transfer.For example also can utilizing, belt replaces wire rod 7.
By the way, among Fig. 2, shown that in a side handle part 6 drops to the situation of lowering position from hoisting position, has shown the situation that makes handle part 6 rise to hoisting position from lowering position at opposite side.
Platform 8 is made of the mounting table of mounting holding articles 4.And, platform 8 is used for receiving the article 4 that carried out predetermined process by article handling part 1 from article transport car 3, perhaps will be handover to article transport car 3 by the article 4 that article handling part 1 carried out predetermined process, and correspond respectively to a plurality of article handling parts 1 and dispose.
Article transport car 3 constitutes, be positioned at handle part 6 under the state of hoisting position and move along walking track 2, by under the state that stops at the stop position corresponding with the platform 8 of transfer object in a plurality of platforms 8, make handle part 6 lifting between hoisting position and lowering position, thus and platform 8 between carry out giving and accepting of article 4.
Article transport car 3 possess the walking of walking on the track 2 walking drive division 9 and with the mode suspension strut of the below that is positioned at walking track 2 on walking drive division 9 article support portion 10 and constitute.
As shown in Figure 3, on walking drive division 9, be provided with road wheel 12 and walking guide wheel 13, this road wheel is driven by CD-ROM drive motor 11 rotation and in the rotation above horizontal surface separately of a pair of walking track 2, this walking guide wheel be connected to separately relative of a pair of walking track 2 along above-below direction the side and rotate freely.And, it constitutes, rotate driving by CD-ROM drive motor 11 around the axle center along the Width of article transport car 3 by road wheel 12, and the walking guide wheel 13 that rotates freely around axle center up and down guide by a pair of walking track 2 butts, makes article transport car 3 be guided by walking tracks 2 and walks.
At this, as shown in Figure 4, road wheel 12 disposes a pair of at the two ends of the Width of article transport car 3, and this a pair of road wheel 12 is provided with 2 in the fore-and-aft direction devices spaced apart of article transport car 3, adds up to be provided with 4 road wheels 12.Walking guide wheel 13 respectively is provided with 2 at the two ends of the Width of article transport car 3, is somebody's turn to do each 2 walking guide wheels 13 and is provided with 2 in the fore-and-aft direction devices spaced apart of article transport car 3, adds up to be provided with 8 walking guide wheels 13.
As shown in Figure 3, on article support portion 10, be provided with wound wire 7 and the rotor (drum) 15 that driven with motor 14 rotation by lifting and by the handle part 6 of wire rod 7 suspension struts.Handle part 6 possess by control with motor 16 freely blocked operation to control article 4 control posture and remove that controlling of controlling remove posture control tool 17.And, constitute, by driving rotors 15 by lifting with motor 14 rotation, make handle part 6 and carry out lifting moving by its article of controlling 4, by controlling tool 17 by controlling with motor 16 blocked operations, thereby control article 4 or remove controlling article 4.
On article transport car 3, be provided with the hot-wire coil 18 between a pair of walking track 2, and constitute, energising by alternating current is producing magnetic field in the supply line 19 of walking track 2 configurations, in article transport car 3 one sides, in hot-wire coil 18, produce necessary electric power by this magnetic field, under the no touch state, article transport car 3 is powered.By the way, supply line 19 is supported by walking track 2 in the mode that is disposed between a pair of walking track 2.
In this article transport device, the walking path S of article transport car 3 walkings is formed by walking track 2, but, as shown in Figure 1, as walking path S, the secondary path 21 and the 1st that is provided with main path 20, the ring-type of ring-type links the path, and the 1st links the path links main path 20 and secondary path 21, and makes branch's walking from the main path 20 of article transport car 3 to secondary path 21 and the walking of the interflow from secondary path 21 to main path 20 from become possibility.The ring-type here is the meaning that forms circulation (loop).
(main path)
As main path 20, be provided with the 1st main path 22 and the 2nd main path 23 of ring-type, the 1st main path possesses a pair of straight line portion of relative configuration and connects a pair of straight line portion terminal part separately and pair of curved (curve) part of top portion, the 2nd main path in two outsides of the 1st main path 22 with respect to the 1st main path 22 with article transport car 3 freely the mode at branch and interflow be connected.
In the inboard of the 1st main path 22, the direction devices spaced apart of extending along the line part branch of the 1st main path 22 and be provided with a plurality of Storage Department 24, the 1 main paths 22 that can be built up in ground article 4 certainly and be configured under the state via a plurality of Storage Departments 24.So, in the inboard of the 1st main path 22, also dispose the Storage Department 24 as the article transport place.
Though omitted diagram, Storage Department 24 is to possess the incorporating section of a plurality of holding articles of mounting freely 4 at above-below direction and left and right directions state arranged side by side.And, on Storage Department 24, possess and article transport car 3 between transfer article 4 go into outbound portion and going into outbound portion and each incorporating section between the article conveying device of conveyance article 4 freely.In the way, path of the 1st main path 22, be set with for by 3 pairs of a plurality of Storage Departments 24 of article transport car separately go into the target stop position that article 4 are gone into outbound by outbound portion, article transport car 3 is under the state that stops at this target stop position, make handle part 6 liftings, and Storage Department 24 between transfer article 4.
In the 1st main path 22, be provided with the 1st simple and direct (short cut) path 25 that relative straight line portion is coupled to each other, constitute, by the 1st simple and direct path 25, even make in the way of the straight line portion of the 1st main path 22, article transport car 3 also transfer freely to relative straight line portion.
The 2nd main path 23 clips the 1st main path 22 in the outside of the 1st main path 22 and is configured in the both sides of a side and opposite side.The 2nd main path 23 possesses straight line portion that the straight line portion with the 1st main path 22 disposes abreast respectively, near the coupling part of the top portion of the straight line portion that is connected to the 2nd main path 23 the top portion of the straight line portion of the 1st main path 22 and be connected near the terminal part of straight line portion of the 1st main path 22 coupling part from the terminal part of the straight line portion of the 2nd main path 23.Thus, formed the path of ring-type by the straight line portion of the 2nd main path 23 and the 1st main path 22.In addition, between neutralizing in the way of straight line path of the 1st main path 22, the way of the straight line portion of the 2nd main path 23 also is provided with the 2nd simple and direct path 26 that article transport car 3 is changed to freely.
(secondary path)
Direction of travel state arranged side by side with the article transport car 3 on the 2nd main path 23 is provided with many (among Fig. 1 in the outside of the 2nd main path 23 in secondary path 21, for example be 4), in the outside of the 2nd main path 23, clip main path 20 and be configured in the both sides of a side and opposite side.About secondary path 21, be configured in the secondary path 21 of a side with respect to main path 20 and clip main path 20 and be configured in relative position with the secondary path 21 that is configured in opposite side with respect to main path 20.
Secondary path 21 under the state via a plurality of platforms 8, will be configured in relative position with the straight line portion that extend near the direction of main path 20 on the edge along the straight line portion that the direction of leaving from main path 20 is extended respectively.And secondary path 21 forms ring-type respectively, and this ring-type possesses a pair of straight line portion and connects the terminal part separately of a pair of straight line portion and the pair of curved part of top portion.In the way, path of secondary main path 21, be set with the target stop position for transfer article 4 between each and article transport car 3 of a plurality of platforms 8, article transport car 3 under the state that stops at this target stop position, make handle part 6 liftings and and platform 8 between transfer article 4.
(the 1st links the path)
The 1st links the path arranges respectively with respect to a plurality of secondary paths 21, the 1st links the path is made of individual path and path, interflow respectively, this individual path is connected to from the straight line portion branch of the 2nd main path 23 and the straight line portion that extends along the direction of leaving from main path 20, and collaborate to the 2nd main path 23 from the terminal part along the straight line portion that extends near the direction of main path 20 in this path, interflow.And, more become the upstream side of the direction of travel of article transport car 3 than the place, interflow in path, interflow with respect to the bifurcation of the individual path of the 2nd main path 23.When article transport car 3 runs to secondary path 21 from the 2nd main path 23 branches, continuing on the 2nd main path 23 direction of travel and along 21 walkings of secondary path.In addition, when article transport car 3 when 21 interflow run to the 2nd main path 23 from secondary path, continuing on the secondary path 21 direction of travel and along 23 walkings of the 2nd main path.
At this, configuration place in Storage Department 24, the 1st simple and direct path 25 and the 2nd simple and direct path 26 on the direction of travel of the article transport car 3 on the 1st main path 22 and the 2nd main path 23 straight line portion separately, becomes the gap of configuration place in secondary path 21.It is gapped that Storage Department 24 is configured in the institute of configuration place in secondary path 21, and more be configured in the outside than configuration place in secondary path 21.The 1st simple and direct path 25 is configured in 1 gap of configuration place in secondary path 21.The 2nd simple and direct path 26 be configured in secondary path 21 configuration place the institute gapped.
In this article transport device, for article transport car 3 can be not clip the secondary path 21 that is disposed at a side of main path 20 in main path 20 walkings and be disposed at walking between the secondary path 21 of opposite side, link outside the path the 1st, also be provided with the secondary path that is disposed at a side 21 that to clip main path 20 in addition and link path 27 with the 2nd of secondary path 21 bindings that are disposed at opposite side.
(the 2nd links the path)
The 2nd end that links path 27 is connected to the secondary path 21 that is configured in a side with respect to main path 20, and the other end is connected to the secondary path 21 that is configured in opposite side with respect to main path 20, the cross-section main path 20 of part in its way.The 2nd links path 27 is configured in the secondary path 21 of relative position linearity connected to each other by clipping main path 20 path constitutes.
21 the 2nd binding paths 27 connected to each other, identical secondary path are provided with 2.Thus, link 1 of paths 27 as being used for making article transport car 3 to run to the path in the secondary path 21 of opposite side (for example right side Fig. 1) from the secondary path 21 of a side (for example Fig. 1 left side) with respect to main path 20 with 2 the 2nd, with other 1 make article transport car 3 run to the path in the secondary path 21 of a side (for example left side Fig. 1) from the secondary path 21 of opposite side (for example Fig. 1 right side) with respect to main path 20 as being used for.2 the 2nd that identical secondary path 21 is connected to each other link path 27 top sides separately and are connected in the secondary path 21 of a side terminal part along the straight line portion that extends near the direction of main path 20, and end side is connected in the secondary path 21 of opposite side the top side of the straight line portion that extends along the direction of separating from main path 20.Thus, shown in dotted arrow among Fig. 1, when article transport car 3 links path 27 and when running to the secondary path 21 of opposite side from the secondary path 21 of a side along the 2nd, direction of travel on direction of travel on direction of travel on the secondary path 21 of one side, the 2nd binding path 27 and the secondary path 21 of opposite side all becomes same direction, because the part in these a plurality of paths in a straight line, thereby can link path 27 successfully runs to opposite side from the secondary path 21 of a side secondary path 21 along the 2nd.
The 2nd links path 27 is arranging in cross-section mode under the state of quadrature respectively with the straight line portion of the straight line portion of the 1st main path 22 and the 2nd main path 23, and the 2nd each the junction that links the straight line portion of the straight line portion of path 27 and the 1st main path 22 and the 2nd main path 23 becomes cross part K.
The 2nd cross part K that links path 27 and the 1st main path 22 is 2 places, near 2 cross part K, is connected with the path, interflow from 27 interflow, the 2nd binding path to the 1st main path 22.Thus, the 2nd binding path 27 can make article transport car 3 with respect to the walking of the 1st main path 22 branches and interflow walking.So, the 2nd links path 27 not only can make article transport car 3 walk to the secondary path 21 of opposite side from the secondary path 21 of a side with respect to main path 20, can also make article transport car 3 not walk in the 2nd main path 23 and run to the 1st main path 22 from secondary path 21.
Link on the path 27 the 2nd, be connected with from the individual path of the 2nd main path 23 branches, be also used as a part that makes article transport car 3 branch to the individual path in secondary path 21 from the 2nd main path 23.Link on the path 27 the 2nd, be connected with the path, interflow of interflow to the 2 main paths 23, be also used as and make article transport car 3 from the part in 21 interflow, secondary path to the path, interflow of the 2nd main path 23.Thus, a part that connects the path in the 2nd main path 23 and secondary path 21 can be formed as common path, thus the simplification that can seek to constitute.
Walking about a plurality of article transport cars 3, be provided with all facility management computing machines of managing the operation of a plurality of moving bodys 3 at walking path S, on article transport car 3, be provided with based on the chassis side control part of controlling the action of article transport car 3 from facility management with the operating instruction information of computing machine.Computing machine and control part belong to prior art, possess CPU, memory device (memory), communication unit etc., store the algorithm (algorithm) of the function of putting down in writing for this specification sheets of enforcement in the memory device.
Though omitted diagram, but on article transport car 3, be provided with the stop board detecting sensor, various sensors such as absolute location plate detecting sensor and travel distance sensor, this stop board detecting sensor detects stop board, this stop board shows that the side that is arranged on walking track 2 is other to be waited and the target stop position corresponding with each platform 8 and Storage Department 24, this absolute location plate detecting sensor detects the absolute location plate, this absolute location plate shows the position (distance) of lighting from the benchmark of other etc. the walking path S of the side that is arranged on walking track 2, the travel distance of this travel distance sensor detection article transport car 3.Chassis side control part, the detection information of the travel distance sensor after detecting based on the detection information of absolute location plate detecting sensor and to absolute location plate detecting sensor, the present position of grasping article transport car 3 is which position on the walking path S, and by radio communication etc. this present position information and the chassis identifying information that can identify the chassis number etc. of which the platform Trolley in a plurality of article transport cars 3 is sent to the facility management computing machine.
Facility management is managed a plurality of article transport cars 3 present position separately with computing machine one side basis from present position information and the chassis identifying information of each chassis side control part, Yi Bian manage the operation of a plurality of article transport cars 3.Facility management becomes with computing mechanism, from a plurality of article transport cars 3, select the article transport car 3 of 1 conveyance object, and the article transport car 3 of this selection sent conveyance instruction as operating instruction information, this conveyance instruction under the state of the platform 8 of from a plurality of platforms 8 and Storage Department 24, specifying conveyance source and conveyance ground and Storage Department 24, from the platform 8 in conveyance source and Storage Department 24 with platform 8 and the Storage Department 24 of article 4 conveyances to conveyance ground.In addition, facility management becomes with computing mechanism, when making article transport car 3 run to conveyance ground from the conveyance source, send for for example selecting the shortest shortest path of travel distance from a plurality of paths and making article transport car 3 in the operating instruction information of the shortest path walking of this selection.
Thus, receive the chassis side control part of the article transport car 3 after conveyance is instructed, detection information based on various sensors, the walking of control article transport car 3, platform 8 and Storage Department 24 with the conveyance source that runs to appointment, and by the lifting action of control handle part 6 and the change action of handle part 6, from platform 8 and the Storage Department 24 reception article 4 in conveyance source.Then, chassis side control part is based on the detection information of various sensors, and the walking of control article transport car 3 with platform 8 and the Storage Department 24 on the conveyance ground that runs to appointment, and is discharged to article 4 platform 8 and the Storage Department 24 on conveyance ground.
As shown in Figure 1, (for example be respectively equipped with a plurality of branching portion B that branch to certain paths from certain paths, the part that with dashed lines surrounds among the figure), the G of interflow portion from certain paths interflow to certain paths (for example, partly that with dashed lines surrounds among the figure) and the cross part K (for example, the part that with dashed lines surrounds among the figure) that intersects orthogonally of certain paths and certain paths.As mentioned above, operation about the article transport car 3 on the walking path S, basically facility management is managing with computing machine, yet, use outside the computing machine at facility management, be respectively equipped with operation management portion at branching portion B, the G of interflow portion and cross part K, while this operation management portion is to prevent the article transport car 3 prominent operation that makes the mode management article conveyance car 3 of article transport car 3 walkings each other.
As branching portion B, for example be provided with from the 2nd main path 23 branch to secondary path 21 branching portion B, branch to the branching portion B in the 1st simple and direct path 25 and branch to the branching portion in the 2nd simple and direct path 26 etc. from the 2nd main path 23 from the 1st main path 22.As the G of interflow portion, for example be provided with the G of interflow portion, the G of interflow portion from 27 interflow, the 2nd binding path to the 1st main path 22, the G of interflow portion from 25 interflow, the 1st simple and direct path to the 1st main path 22 and the G of interflow portion from 26 interflow, the 2nd simple and direct path to the 1st main path 22 etc. from 21 interflow, secondary path to the 2nd main path 23.As cross part K, for example be provided with the 2nd and link the cross part K of path 27 and the 2nd main path 23 intersections and the cross part K of the 2nd binding path 27 and the 1st main path 22 intersections etc.
When entering branching portion B, the G of interflow portion and cross part K, whether the chassis side control part of article transport car 3 allows the inquiry that enters to operation management portion in front of it, controls the walking of article transport car 3 in the mode that only just enters branching portion B, the G of interflow portion and cross part K when allowing to enter.On the other hand, if whether allow to enter from the inquiry of chassis side control part, then operation management portion sends operating instruction information in the mode that only allows 1 article transport car 3 to enter to chassis side control part in the G of interflow portion and cross part K, in the mode that allows to enter under the article transport car 3 non-existent conditions after branch chassis side control part is sent operating instruction information in branching portion B.
(branching portion)
Among the branching portion B, the walking path of article transport car 3 is branched off into 2 paths, switches to which the paths walking in 2 paths.So, describe being used for switching to the formation of walking at any paths of 2 paths.For example, be example with the branching portion B that branches to secondary path 21 from the 2nd main path 23, describe based on Fig. 4.
Branching to the branching portion B in secondary path 21 from the 2nd main path 23, article transport car 3 is when when the 2nd main path 23 walks on, switch in the walking of the path of straight ahead, when branching to secondary path 21 from the 2nd main path 23, switch to the path walking of the branch on right side in the drawings.
In branching portion B, except walking track 2, also be provided with branching portion with guide rail 30, this branching portion with the guide rail guiding possess on the top of article transport car 3 rotate around axle center up and down freely be directed roller 29.Branching portion mutually to possess 2 guide surfaces of the face relative with a side of the Width of article transport car 3 and the face relative with opposite side at the relative state of opposition side, is directed the guide surface 31 of roller 29 with guide rail 30 as guiding.And a side of 2 guide surfaces of guide rail 30 is made of with guide surface 31a the straight ahead in the path that article transport car 3 is guided to straight ahead, and opposite side is made of with guide surface 31b the branching portion in the path that article transport car 3 is guided to branch.
On the other hand, on article transport car 3, possesses guide surface switching mechanism 32, on the Width of this guide surface switching mechanism change article transport car 3 with respect to the position that be directed roller 29 of branching portion with guide rail 30, the guide surface that guiding is directed roller 29 switches to straight ahead usefulness guide surface 31a or branching portion guide surface 31b freely.Being directed roller 29 is provided with a pair of in the fore-and-aft direction devices spaced apart of article transport car 3, the a pair of roller 29 that is directed is configured in the place identical with configuration place of road wheel 12 respectively on the fore-and-aft direction of article transport car 3, guide surface switching mechanism 32 with respect to a pair of be directed roller 29 each and arrange.
A pair of guide surface switching mechanism 32 possesses respectively by drive divisions such as motor 33 and shakes freely swing arm 34 around axle center up and down, is located at the moving body 35 of leading section of swing arm 34 and the guiding moving part 36 that guides mobile moving body 35 along the Width of article transport car 3.And, be directed roller 29 and rotate the leading section that is supported on moving body 35 freely around axle center up and down.A pair of guide surface switching mechanism 32 constitutes separately, by by drive division 33 swing arm 34 being shaken, make the position be directed roller 29 change to left side or right side at the Width of article transport car 3, be directed roller 29 or guided with guide surface 31b by branching portion being directed roller 29 thereby switch to freely to be guided with guide surface 31a by straight ahead in guide rail 30 at branching portion.Among Fig. 4, shown that guide surface switching mechanism 32 switches at branching portion to be directed the state of roller 29 with guide surface 31b guiding by branching portion in guide rail 30.Dotted line among Fig. 4 has shown roller 29 is branched to the path of branch with guide surface 31b guiding and article transport car 3 by branching portion the state that is directed.
(interflow portion)
Though omitted diagram, identical with above-mentioned branching portion B, in the G of interflow portion, except walking track 2, also be provided with the interflow portion guide rail that guiding is directed roller 29.Guide surface switching mechanism 32 is to make the position that is directed roller 29 change to left side or right side at the Width of article transport car 3 by interflow portion with the mode that the guide rail guiding is directed roller 29, by being directed roller 29 by interflow portion with the guide rail guiding, make article transport car 3 interflow constitute freely.
(cross part)
About the cross part K in the path switching device, for example, be example with the 1st main path 22 (being equivalent to the 1st path) and the 2nd cross part K that links path 27 (being equivalent to the 2nd path), describe based on Fig. 5 and Fig. 6.By the way, link among the cross part K in path 27 at the 2nd main path 23 and the 2nd, the 2nd main path 23 is equivalent to the 1st path, and the 2nd links path 27 is equivalent to the 2nd path.
The main path that is connected to cross part K in the 1st main path 22 links the secondary path that is connected to cross part K the path 27 with intake section 39 (being equivalent to the 2nd intake section) and the secondary path that is connected from cross part K going up separately with exit portion 40 (being equivalent to the 2nd exit portion) with intake section 37 (being equivalent to the 1st intake section) and the main path that is connected from cross part K with exit portion 38 (being equivalent to the 1st exit portion) and the 2nd, except a pair of walking track 2, also be provided with cross part that guiding is directed roller 29 with guide rail 41 (being equivalent to guide rail).
Below, about walking track 2, be called main walking track 2a with intake section 37 and main path with the part of exit portion 38 with being located at main path, be called pair walk track 2b with intake section 39 and secondary path with the part of exit portion 40 with being located at secondary path.In addition, about cross part guide rail 41, be called main crossings portion guide rail 41a with intake section 37 and main path with the part of exit portion 38 with being located at main path, be called secondary cross part guide rail 41b with intake section 39 and secondary path with the part of exit portion 40 with being located at secondary path.
At cross part K, be provided with walking swing-around trajectory 44 (handoff path), this walking with swing-around trajectory around axle center up and down rotation freely to the 1st walking position that is connected to main walking track 2a (the 1st position of the usefulness that is equivalent to walk, with reference to Fig. 5 (b)) and be connected to the 2nd walking position (the 2nd position of the usefulness that is equivalent to walk is with reference to Fig. 5 (a)) of secondary walking track 2b.Identical with walking track 2, walking constitutes with swing-around trajectory 44, by guide support road wheel 12 above horizontal surface and by the side guiding walking guide wheel 13 along above-below direction.And, main path with intake section 37 and main path with exit portion 38 and secondary path with intake section 39 and secondary path with exit portion 40 separately in, by a pair of walking track 2 two sides of a pair of road wheel 12 that possesses at article transport car 3 of guide support severally.In contrast, at cross part K, by walking with swing-around trajectory 44 side of a pair of road wheel 12 that possesses at article transport car 3 of guide support only.That is to say that walking is with swing-around trajectory 44, only be connected to the side of a pair of main walking track 2a at the 1st walking position, only be connected to the side of a pair of secondary walking track 2b at the 2nd walking position, exist only in a side of the Width of article transport car 3.
Walking is configured in the position that is connected with terminal part and the secondary terminal part of walking track 2b of main walking track 2a with an end of swing-around trajectory 44, and, this end used down axle center 45 as walking and come and go to shake and be located at the 1st walking position and the 2nd walking position freely.Thus, use down axle center 45 round shake with swing-around trajectory 44 around walking by making walking, thereby constitute walking swing-around trajectory 44 in the mode that switches to the 1st walking position and the 2nd walking position freely.
At cross part K, except swing-around trajectory 44 is used in walking, for guide possess on the top of article transport car 3 be directed roller 29, also be provided with guiding swing-around trajectory 42 (handoff path), this guiding with swing-around trajectory around axle center up and down and rotation freely (is equivalent to guide the 1st position of usefulness to being connected to the 1st guide position of main crossings portion with guide rail 41a, with reference to Fig. 5 (b)) and be connected to secondary cross part with the 2nd guide position (being equivalent to guide the 2nd position of usefulness, with reference to Fig. 5 (a)) of guide rail 41b.
At this, Fig. 5 (b) has shown to walk and has switched to the 1st walking position with swing-around trajectory 44, and will guide the state that switches to the 1st guide position with swing-around trajectory 42.Shown to walk among Fig. 5 (a) to switch to the 2nd walking position with swing-around trajectory 44, and will guide the state that switches to the 2nd guide position with swing-around trajectory 42.
For boot configuration the central portion of the Width of article transport car 3 be directed roller 29, main crossings portion is configured in the central portion of the Width of the article transport car 3 by cross part K respectively with guide rail 41b with swing-around trajectory 42 and secondary cross part with guide rail 41a, guiding.Main crossings portion possesses respectively as guiding with guide rail 41b with swing-around trajectory 42 and secondary cross part with guide rail 41a, guiding and is directed the 1st guide surface 43 relative with a side of the Width article transport car 3 that passes through cross part K the guide surface 43a of roller 29 and the 2nd guide surface 43b relative with opposite side.
And, guiding with swing-around trajectory 42 so that the central portion of its length direction is used down axle center 46 as guiding freely round shaking to the mode of the 1st guide position and the 2nd guide position arrange.
At cross part K, use the switching of swing-around trajectory 42 with swing-around trajectory 44 and guiding about walking, at cross part K drive divisions such as electro-motor are not set, walk to entering of cross part K with swing-around trajectory 44 and the switching of guiding with swing-around trajectory 42 but be accompanied by article transport car 3.
At article transport car 3, possess bulldozing operation portion 47, this bulldozing operation portion is accompanied by article transport car 3 and will guides freely to entering of cross part K with swing-around trajectory 42 from the 1st guide position bulldozing operation to the 2 guide positions and from the 2nd guide position bulldozing operation to the 1 guide position.Bulldozing operation portion 47 for example is made of the pushing roller that rotates freely around axle center up and down, is configured in the top leading section of article transport car 3.Thus, if article transport car 3 enters to cross part K, then bulldozing operation portion 47 bulldozing operation guiding freely is with swing-around trajectory 42, the bulldozing operation of bulldozing operation portion 47 make guiding with swing-around trajectory 42 around about the axle center shake, switch to the 1st guide position and the 2nd guide position.
At cross part K, possesses the link mechanism 48 that guiding is connected with the rotation of swing-around trajectory 42 and the rotation with swing-around trajectory 44 of walking.If the bulldozing operation of bulldozing operation portion 47 makes guiding rotate to the 2nd guide position from the 1st guide position with swing-around trajectory 42, then link mechanism 48 makes guiding connect with the rotation of swing-around trajectory 42 and the walking rotation with swing-around trajectory 44, makes walking use swing-around trajectory 44 to rotate to the 2nd walking position from the 1st walking position.In addition, if the bulldozing operation of bulldozing operation portion 47 makes guiding rotate to the 1st guide position from the 2nd guide position with swing-around trajectory 42, then link mechanism 48 makes guiding connect with the rotation of swing-around trajectory 42 and the walking rotation with swing-around trajectory 44, makes walking use swing-around trajectory 44 to rotate to the 1st walking position from the 2nd walking position.
So, be accompanied by article transport car 3 and enter to cross part K, the bulldozing operation of bulldozing operation portion 47 make the guiding with swing-around trajectory 42 around about the axle center shake, switch to the 1st guide position and the 2nd guide position.With the switching of swing-around trajectory 42, link mechanism 48 makes guiding connect with the rotation of swing-around trajectory 42 and the rotation of walking with swing-around trajectory 44 by guiding, and will walk switches to the 1st walking position and the 2nd walking position with swing-around trajectory 44.
So, switching mechanism with by bulldozing operation portion 47 and link mechanism 48 and the mode that switches to the 1st switching state and the 2nd switching state freely constitute, the 1st switching state makes guiding be positioned at the 1st guide position with swing-around trajectory 42 and makes walking be positioned at the 1st walking position with swing-around trajectory 44, and the 2nd switching state makes guiding be positioned at the 2nd guide position with swing-around trajectory 42 and makes walking be positioned at the 2nd walking position with swing-around trajectory 44.
As shown in Figure 6, link mechanism 48 possess around axle center up and down and with guiding with swing-around trajectory 42 the 1st swivel 49 of rotation, the 2nd swivel 50 that rotates freely integratedly with swing-around trajectory 44 around axle center up and down and with walking and the rotation of the 1st swivel 49 is passed to the 2nd swivel 50 and makes the rotation transfer part 51 that the 2nd swivel 50 rotates and constitute freely integratedly.
The 1st swivel 49 is configured in supporting guide is used the rail supported body 52 of swing-around trajectory 44 with swing-around trajectory 42 and walking top.And the pivot center that guiding is used down axle center 46 and the 1st swivel 49 with the guiding of swing-around trajectory 42 is linked by the 1st connection shaft 53, guiding with swing-around trajectory 42 and the 1st swivel 49 around about axle center and rotating integratedly.
The 2nd swivel 50 is configured in the below that swing-around trajectory 44 is used in walking.And the pivot center that walking is used down axle center 45 and the 2nd swivel 50 with the walking of swing-around trajectory 44 is linked by the 2nd connection shaft 54, walking with swing-around trajectory 44 and the 2nd swivel 50 around about axle center and rotating integratedly.
Rotation transfer part 51 possesses the swivel 56 of migrating in a pair of, the swivel of migrating during this is a pair of is configured in by the side of rail supported body 52, by in the connection shaft 55 of migrating pivot center is connected to each other, around axle center rotation freely integratedly up and down, migrate swivel 56 and swivel 56 rotations of migrating in making during the rotation of the 1st swivel 49 is passed to, and, the rotation of the swivel 56 of migrating in this is passed to the 2nd swivel 50 and makes 50 rotations of the 2nd swivel.The swivel 56 of migrating among the 1st swivel 49 and one is made of synchronous pulley (timing pulley), the swivel 56 of migrating in by being wound on the synchronous belt (timingbelt) 57 on the swivel 56 of migrating among the 1st swivel 49 and the rotation of the 1st swivel 49 being passed to.The 2nd swivel 50 and the swivel 56 of migrating in another are made of the gear of mutual interlock, by in migrate in the inciting somebody to action rotation of swivel 56 of the interlock of swivel 56 and the 2nd swivel 50 of migrating be passed to the 2nd swivel 50.At this, in the migrate hand of rotation of the hand of rotation of swivel 56 and the 2nd swivel 50 become reversing sense and transmit.
If guiding is with swing-around trajectory 42 rotation, then guiding is rotated integratedly with swing-around trajectory 42 and the 1st swivel 49, and the rotation of the 1st swivel 49 is passed to by synchronous belt 57 and migrates swivel 56 in one and rotate.Swivel 56 rotate integratedly owing to migrate in a pair of, thus in the migrate rotation of swivel 56 be passed to the 2nd swivel 50 and rotate, the 2nd swivel 50 and walking usefulness swing-around trajectory 44 rotate integratedly.So, rotate to the 2nd guide position from the 1st guide position if guide with swing-around trajectory 42, walking is rotated to the 2nd walking position from the 1st walking position with swing-around trajectory 44.On the contrary, if guiding is rotated to the 1st guide position from the 2nd guide position with swing-around trajectory 42, walking is rotated to the 1st walking position from the 2nd walking position with swing-around trajectory 44.At this, therefrom migrating swivel 56 in the transmission of the 2nd swivel 50, hand of rotation becomes reversing sense.Thus, link mechanism 48 makes guiding become reversing sense with the hand of rotation of swing-around trajectory 42 and walking with the hand of rotation of swing-around trajectory 44, makes to guide with the rotation of swing-around trajectory 42 and the rotation of walking with swing-around trajectory 44 to connect.
(passing through of the article transport car in the cross part)
Action when passing through cross part K about article transport car 3 for example, is example with the 2nd cross part K that links path 27 and the 1st main path 22, describes based on Fig. 7 and Fig. 8.In Fig. 7 and Fig. 8, shown article transport car 3 basically along the situation of the 1st main path 22 by cross part K, in Fig. 8 (b), shown that by dotted line article transport car 3 links path 27 by the situation of cross part K along the 2nd.
Shown in Fig. 7 (a) and Fig. 7 (b), if article transport car 3 enters cross part K along the 1st main path 22, then be accompanied by article transport car 3 and enter cross part K, with swing-around trajectory 42, guiding begins from the 2nd guide position to being connected to main crossings portion shaking with the 1st guide position of guide rail 41a with swing-around trajectory 42 by the guiding of bulldozing operation portion 47 bulldozing operations.Thus, the guiding of link mechanism 48 with the contact between the rotation of swing-around trajectory 44, makes walking the shaking also with swing-around trajectory 44 to the 1st walking position that is connected to main walking track 2a since the 2nd walking position with the rotation of swing-around trajectory 42 and walking.At this, because bulldozing operation portion 47 is with the state setting of the front that projects to article transport car 3, thereby when the 1st intake section 39 walkings before article transport car 3 arrives cross part K, the guiding of bulldozing operation portion 47 bulldozing operations is with swing-around trajectory 42, and guiding begins from the 2nd guide position to being connected to main crossings portion shaking with the 1st guide position of guide rail 41a with swing-around trajectory 42.
Shown in Fig. 8 (a), shake to the 1st guide position if will be guided with swing-around trajectory 42 by the bulldozing operation of bulldozing operation portion 47, the then contact of using the rotation of swing-around trajectory 44 with rotation and the walking of swing-around trajectory 42 by the guiding of link mechanism 48, walking is also shaken to the 1st walking position with swing-around trajectory 44.As mentioned above, when the 1st intake section 39 walkings before article transport car 3 arrives cross part K, begin to guide with the shaking of swing-around trajectory 42, thereby when article transport car 3 arrival cross part K, guide and shake to the 1st guide position with swing-around trajectory 42.Thus, a side of road wheel 12 is used swing-around trajectory 44 guide support by walking, and, being directed roller 29 and being guided with swing-around trajectory 42 by guiding, article transport car 3 can be walked at cross part K.And, when article transport car 3 when cross part K walks since the walking guide wheel 13 of article transport car 3 by walking with swing-around trajectory 44 guiding, thereby the 13 pushing walkings of walking guide wheel are with swing-around trajectories 44.As a result, can maintain the 1st walking position with swing-around trajectory 44 with walking, can walking by this, channeling conduct uses the position at the 1st guide position of swing-around trajectory 42 to keep with the position maintenance of swing-around trajectory 44.
At this, though road wheel 12, walking guide wheel 13, to be directed roller 29 a pair of before and after arranging in the fore-and-aft direction devices spaced apart of article transport car 3, road wheel 12, walking guide wheel 13, the allocation position that is directed roller 29 roughly become same position respectively on the fore-and-aft direction of article transport car 3.Thus, be directed roller 29 and guiding with being roughly identical opportunity on opportunity of swing-around trajectory 42 butts and walking guide wheel 13 and the opportunity with swing-around trajectory 44 butts of walking.Thus, by be directed roller 29 and guiding with the butt pushing guiding of swing-around trajectory 42 with the power of swing-around trajectory 42 and push the power of walking with swing-around trajectory 44 by walking guide wheel 13 and walking with the butt of swing-around trajectory 44 and work on roughly the same opportunity.And, except this thrust pressure working identical opportunity, because guiding is reversing sense with the hand of rotation of swing-around trajectory 42 with the hand of rotation of walking with swing-around trajectory 44, thereby can reliably walking be maintained the 1st walking position with swing-around trajectory 44, and, can reliably guiding be maintained the 1st guide position with swing-around trajectory 42.
In addition, for example, the interval on the fore-and-aft direction of article transport car 3 that is directed roller 29 is shorter with the length of swing-around trajectory 44 than walking, leave with swing-around trajectory 44 from walking respectively if be configured in the walking guide wheel 13 of front side, the walking guide wheel 13 that then is configured in rear side is connected to walking swing-around trajectory 44.Thus, be directed under roller 29 and the state of guiding with swing-around trajectory 42 butts, article transport car 3 can pass through cross part K.
So, shown in Fig. 8 (b), article transport car 3 can be along the 1st main path 22 by cross part K.
Though be accompanied by that article transport car 3 enters cross part K by the bulldozing operation portion 47 bulldozing operations guiding that possesses at article transport car 3 with swing-around trajectory 42, guiding with swing-around trajectory 42 with the central portion of its length direction serve as guiding use down axle center 46 come and go shake to be connected to main crossings portion with the 1st guide position of guide rail 41a be connected to secondary cross part the 2nd guide position of guide rail 41b.So, guiding with swing-around trajectory 42 shake to the 2nd guide position from the 1st guide position the time hand of rotation and the hand of rotation when shaking to the 1st guide position from the 2nd guide position be reversing sense.Thus, when article transport car 3 passes through cross part K, along the 1st main path by the time and along the 2nd link path 27 by the time, the hand of rotation of the position that makes bulldozing operation portion 47 in the Width change of article transport car 3 and when guiding is shaken with swing-around trajectory 42 is necessary to become reversing sense.
So, at article transport car 3, possess position change mechanism 58 of bulldozing operation portion, this position change mechanism of bulldozing operation portion changes to the 1st pushing position and the 2nd pushing position (with reference to Fig. 4) freely with the position of bulldozing operation portion 47 on the Width of article transport car 3.Shown in Fig. 7 (a), the 1st pushing position be the Width of article transport car 3 than guiding with the central portion of the length direction of swing-around trajectory 42 more end side the position and be to shake to the position of the 1st guide position from the 2nd guide position with swing-around trajectory 42 be used to making to guide.Shown in the dotted line of Fig. 8 (b), the 2nd pushing position be the Width of article transport car 3 than guiding with the central portion of the length direction of swing-around trajectory 42 more end side the position and be to shake to the position of the 2nd guide position from the 1st guide position with swing-around trajectory 42 be used to making to guide.
Pass through under the situation of cross part K along the 1st main path 22 at article transport car 3, shown in Fig. 7 (a), position change mechanism 58 of bulldozing operation portion changes to the 1st pushing position (right side of the direction of travel of the article transport car 3 among the figure) with the position of bulldozing operation portion 47.In addition, link path 27 by under the situation of cross part K at article transport car 3 along the 2nd, shown in the dotted line of Fig. 8 (b), position change mechanism 58 of bulldozing operation portion changes to the 2nd pushing position (left side of the direction of travel of the article transport car 3 among the figure) with the position of bulldozing operation portion 47.
When article transport car 3 passes through cross part K, the guide surface switching mechanism 32 (with reference to Fig. 4) that possesses at article transport car 3 constitutes, and will freely change to right side or left side with swing-around trajectory 42 and secondary cross part with each the position that is directed roller 29 of guide rail 41b with guide rail 41a, guiding with respect to main crossings portion on the Width of article transport car 3.Thus, when article transport car 3 passed through cross part K, guide surface switching mechanism 32 constituted, and switching to freely and guiding the guide surface that is directed roller 29 is the 1st guide surface 43a or the 2nd guide surface 43b.
And guide surface switching mechanism 32 makes the position change that is directed roller 29, and the guide surface that makes guiding be directed roller 29 becomes to be faced and the face of walking with the opposite side of the non-existent side of swing-around trajectory.That is to say, when article transport car 3 passes through cross part K along the 1st main path 22, shown in Fig. 8 (a), because walking is switched to the 1st walking position that is connected to main walking track 2a with swing-around trajectory 44, thereby walking is present in the right side with swing-around trajectory 44 with respect to the direction of travel of article transport car 3.So, shown in Fig. 7 (a), guide surface switching mechanism 32 will change to right side with swing-around trajectory 42 and secondary cross part with each the position that is directed roller 29 of guide rail 41b with guide rail 41a, guiding with respect to main crossings portion, and the guide surface that guiding is directed roller 29 becomes in the face of and walks and use the 1st guide surface 43a of the opposite side of swing-around trajectory 44 non-existent sides.In addition, shown in the dotted line of Fig. 8 (b), when article transport car 3 links path 27 by cross part K along the 2nd, guide surface switching mechanism 32 will change to left side with swing-around trajectory 42 and secondary cross part with each the position that is directed roller 29 of guide rail 41b with guide rail 41a, guiding with respect to main crossings portion, and the guide surface that guiding is directed roller 29 becomes in the face of and walks and use the 2nd guide surface 43b of the opposite side of swing-around trajectory 44 non-existent sides.
As mentioned above, the position of the bulldozing operation portion 47 on the Width of article transport car 3 constitutes by position change mechanism 58 of bulldozing operation portion and changes freely, and the position that is directed roller 29 on the Width of article transport car 3 constitutes by guide surface switching mechanism 32 and changes freely.So, bulldozing operation portion 47 by union body 59 be directed that roller 29 links and supported, on the Width of article transport car 3, and be directed that roller 29 is mobile integratedly to be arranged freely.Thus, position change mechanism 58 of bulldozing operation portion does not possess drive division etc. individually, is made of guide surface switching mechanism 32.
(other embodiment)
(1) in the above-mentioned embodiment, on article transport car 3, it is a pair of before and after being provided with along the fore-and-aft direction devices spaced apart of article transport car 3 to be directed roller 29, but, for example also can be on the fore-and-aft direction of article transport car 3, a pair of midway location setting that is directed configuration place of roller 29 is directed roller 29 in front and back.Thus, when article transport car 3 during by cross part K, can do one's utmost to prolong be directed roller 29 and guiding with swing-around trajectory 42 butts during, the walking of article transport car 3 is more stable.In addition, by so a pair of midway location that is directed configuration place of roller 29 also arranges and is directed roller 29 in front and back, thereby even for example the front and back width of article transport car 3 is long, the walking that also can make article transport car 3 is stable and by cross part K.
(2) in the above-mentioned embodiment, walking is configured in the road wheel 12 of the side in the road wheel 12 of both sides of Width of article transport car 3 respectively in the 1st walking position and the 2nd walking position guide support with swing-around trajectory 44, but, also can be configured in both sides' the mode of road wheel 12 of both sides of the Width of article transport car 3 with guide support, under the state that is connected respectively to a pair of walking track 2a, 2b, a pair of walking swing-around trajectory 44 is set.
(3) in the above-mentioned embodiment, link mechanism 48 also can become equidirectional mode with the hand of rotation of swing-around trajectory 42 and walking with the hand of rotation of swing-around trajectory 44 with guiding to be made to guide with the rotation of swing-around trajectory 42 and the rotation of walking with swing-around trajectory 44 and connects.In addition, it will be readily apparent to one skilled in the art that position and the quantity of the gear that can change as the component parts of link mechanism 48, belt, axle, pulley.These component parts whole dispensable for example, can use a plurality of interlock gears to replace belt, can also utilize belt and pulley to replace gear and axle.In addition, as belt, not necessarily must use synchronous belt.
(4) in the above-mentioned embodiment, also bulldozing operation portion can be constituted and be accompanied by article transport car 3 and will walk freely to entering of cross part K with swing-around trajectory 44 from the 1st position bulldozing operation of walking usefulness to the 2nd position of the usefulness of walking and the 1st position from the 2nd position bulldozing operation of walking usefulness to the usefulness of walking.In this case, if the bulldozing operation of bulldozing operation portion makes walking rotate the 2nd position to the usefulness of walking from the 1st position of walking usefulness with swing-around trajectory 44, then link mechanism makes guiding rotate to the 2nd position that guides usefulness with the 1st position of swing-around trajectory 42 from guiding usefulness, and, if the bulldozing operation of bulldozing operation portion makes walking rotate the 1st position to the usefulness of walking from the 2nd position of walking usefulness with swing-around trajectory 44, then link mechanism make guiding with swing-around trajectory 42 from the 2nd position rotation of guiding usefulness to the 1st position that guides usefulness, thereby guiding is connected with the rotation of swing-around trajectory 42 and the rotation of walking with swing-around trajectory 44.
In addition, not necessarily must possess roller in bulldozing operation portion.In addition, structure as position change mechanism of bulldozing operation portion, slide the mobile structure along the Width of article transport car except making bulldozing operation portion, also can utilize such structure, namely by utilizing electromotor etc. to make the base end side rotation of bulldozing operation portion, thereby the front end edge Width of bulldozing operation portion is moved.Any technique known that also can utilize other that its broad ways is moved.

Claims (9)

1. paths intersect portion switching device possesses:
The 1st path;
The 2nd path intersects at cross part with described the 1st path;
At least one article transport car constitutes in the mode along described the 1st path and the 2nd path movement, and described article transport car has respectively:
What possess on the top of described article transport car is directed roller, can be around the axle center rotation along the above-below direction of described article transport car;
The road wheel that possesses in the bottom of described article transport car can be around the axle center rotation along the Width of described article transport car;
Guide rail guides the described roller that is directed of described article transport car;
The walking track, the road wheel of the described article transport car of guide support, at this, described guide rail and described walking track are separately positioned on the 2nd intake section that is connected to described cross part and the 2nd exit portion that is connected from described cross part the 1st intake section that is connected to described cross part and the 1st exit portion that is connected from described cross part and described the 2nd path in described the 1st path;
The guiding swing-around trajectory, be configured in described cross part, can rotate to the 1st position of the guiding usefulness that is connected to the described guide rail that is located at described the 1st intake section and described the 1st exit portion and the 2nd position that is connected to the guiding usefulness of the described guide rail that is located at described the 2nd intake section and described the 2nd exit portion around axle center up and down;
The walking swing-around trajectory, be configured in described cross part, can rotate to the 1st position of the walking usefulness that is connected to the described walking track that is located at described the 1st intake section and described the 1st exit portion and the 2nd position that is connected to the walking usefulness of the described walking track that is located at described the 2nd intake section and described the 2nd exit portion around axle center up and down; And
Switching mechanism at described cross part, can switch to and make the 1st switching state that the article transport car passes through and the 2nd switching state that described article transport car is passed through in described the 2nd path in described the 1st path,
It is characterized in that also possessing:
Bulldozing operation portion, be located on each described article transport car, and constitute, be accompanied by described article transport car to the entering of described cross part, with described guiding with swing-around trajectory and described walking with one in the swing-around trajectory from described the 1st position bulldozing operation to described the 2nd position and from described the 2nd position bulldozing operation to described the 1st position;
Link mechanism, if the bulldozing operation of described bulldozing operation portion make described guiding with swing-around trajectory and described walking with one in the swing-around trajectory from the rotation of described the 1st position to described the 2nd position, then make described guiding with swing-around trajectory and described walking with in the swing-around trajectory another from the rotation of described the 1st position to described the 2nd position, and, if the bulldozing operation of described bulldozing operation portion make described guiding with swing-around trajectory and described walking with one in the swing-around trajectory from the rotation of described the 2nd position to described the 1st position, then make described guiding with swing-around trajectory and described walking with in the swing-around trajectory another from the rotation of described the 2nd position to described the 1st position, described guiding is connected with the rotation of swing-around trajectory and the described walking rotation with swing-around trajectory
At this, described switching mechanism with by described bulldozing operation portion and described link mechanism and the mode that can switch to described the 1st switching state and described the 2nd switching state constitute, described the 1st switching state makes described guiding be positioned at the 1st position of described guiding usefulness with swing-around trajectory and makes described walking be positioned at the 1st position of described walking usefulness with swing-around trajectory, and described the 2nd switching state makes described guiding be positioned at the 2nd position of described guiding usefulness with swing-around trajectory and makes described walking be positioned at the 2nd position of described walking usefulness with swing-around trajectory.
2. path switching device according to claim 1 is characterized in that,
Described bulldozing operation portion constitutes, be accompanied by described article transport car entering to described cross part, can be with described guiding with 2nd position and 1st position from 2nd position bulldozing operation of described guiding usefulness to described guiding usefulness of swing-around trajectory from the 1st position bulldozing operation of described guiding usefulness to described guiding usefulness
If the bulldozing operation of described bulldozing operation portion makes described guiding with 2nd position of swing-around trajectory from the 1st position rotation of described guiding usefulness to described guiding usefulness, then described link mechanism makes described walking with 2nd position of swing-around trajectory from the rotation of the 1st position of described walking usefulness to described walking usefulness, and, if the bulldozing operation of described bulldozing operation portion makes described guiding with 1st position of swing-around trajectory from the 2nd position rotation of described guiding usefulness to described guiding usefulness, then described link mechanism makes described walking with 1st position of swing-around trajectory from the rotation of the 2nd position of described walking usefulness to described walking usefulness, and described guiding is connected with the rotation of swing-around trajectory and the described walking rotation with swing-around trajectory.
3. path switching device according to claim 2 is characterized in that,
In the bottom of described article transport car, possess the walking guide wheel that can rotate around axle center up and down,
Described walking constitutes with swing-around trajectory, by the described road wheel of face guide support along horizontal surface, and, guide described walking guide wheel by the face along above-below direction.
4. according to claim 2 or 3 described path switching devices, it is characterized in that,
Described link mechanism mutually becomes reciprocal mode with the hand of rotation of swing-around trajectory and described walking with the hand of rotation of swing-around trajectory with described guiding described guiding is connected with the rotation of swing-around trajectory and the described walking rotation with swing-around trajectory.
5. according to claim 2 or 3 described path switching devices, it is characterized in that,
Described link mechanism possess the 1st swivel of can be around axle center up and down and rotating integratedly with swing-around trajectory with described guiding, can be around axle center up and down and rotation transfer part that the 2nd swivel that rotates integratedly with swing-around trajectory with described walking and rotation that will described the 1st swivel are passed to described the 2nd swivel and described the 2nd swivel is rotated.
6. according to claim 2 or 3 described path switching devices, it is characterized in that,
Described guiding constitutes with swing-around trajectory, and come and go around axle center up and down and shake to the 1st position of described guiding usefulness and the 2nd position of described guiding usefulness,
Described walking track, the mode of each described road wheel of both sides that is configured in the Width of described article transport car with guide support severally is configured in the both sides of the Width of described article transport car,
Described walking constitutes with swing-around trajectory, one end is configured in the position that is connected with the terminal part of the terminal part of a pair of described walking track that is configured in described the 1st intake section and a pair of described walking track that is configured in described the 2nd intake section, and making up and down, the axle center is positioned at this end and round shaking to the 1st position of described walking usefulness and the 2nd position of described walking usefulness.
7. path switching device according to claim 6 is characterized in that,
Described guide rail and described guiding swing-around trajectory, with when described article transport car passes through described cross part, boot configuration is configured in the central portion of the Width of described article transport car in the described mode that is directed roller of the central portion of the Width of described article transport car
Described guiding arranges in the mode that this central portion can be shaken as axle center up and down with swing-around trajectory,
On described article transport car, possesses position change mechanism of bulldozing operation portion, position change mechanism of this bulldozing operation portion can be on the Width of described article transport car changes to the 1st pushing position and the 2nd pushing position with the location of described bulldozing operation portion, the 1st pushing position be on the Width of described article transport car than described guiding with the central portion of the swing-around trajectory position of end side more, and make described guiding shake the 1st position to described guiding usefulness from the 2nd position of described guiding usefulness with swing-around trajectory, the 2nd pushing position be on the Width of described article transport car than described guiding with the central portion of the swing-around trajectory position of end side more, and make described guiding shake the 2nd position to described guiding usefulness from the 1st position of described guiding usefulness with swing-around trajectory.
8. path switching device according to claim 7 is characterized in that,
Described walking constitutes with swing-around trajectory, respectively at the road wheel of the side of the 2nd location guide supported configurations in the described road wheel of the both sides of the Width of described article transport car of the 1st position of described walking usefulness and described walking usefulness,
Described guide rail possesses as described guide surface relative with a side of Width described article transport car the face of roller and the face relative with opposite side of being directed of guiding with swing-around trajectory with described guiding,
On described article transport car, possesses the guide surface switching mechanism, when described article transport car passes through described cross part, the change of this guide surface switching mechanism on the Width of described article transport car with respect to described guide rail and described guiding with the described position that is directed roller of swing-around trajectory, can switch to the face relative with a side of Width described article transport car in described guide rail and the described guiding usefulness swing-around trajectory or the face relative with opposite side by the described face that is directed roller of guiding.
9. path switching device according to claim 8 is characterized in that,
Described bulldozing operation portion with on the Width of described article transport car can with described be directed roller integratedly mobile mode possess,
Position change mechanism of described bulldozing operation portion is made of described guide surface switching mechanism.
CN2010101572940A 2009-03-27 2010-03-17 Cross switching device Active CN101844680B (en)

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US20100242784A1 (en) 2010-09-30
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KR101204808B1 (en) 2012-11-26
US8245647B2 (en) 2012-08-21
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CN101844680A (en) 2010-09-29
JP2010228674A (en) 2010-10-14

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